package com.cblz.bd.common.core.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * {@code @Name:} BeanUtil
 * {@code @Description: } 普通类获取Spring容器中的bean工具类
 * {@code @Author:} by yanjieping
 * {@code @CreateDate:} 2022/12/7 - 周三
 */
@Component
public class BeanUtil implements ApplicationContextAware {
    private static ApplicationContext applicationContext;

    /**
     * 获取applicationContext
     *
     * @return
     */
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if (BeanUtil.applicationContext == null) {
            BeanUtil.applicationContext = applicationContext;
        }
    }

    /**
     * 通过name获取 Bean.
     *
     * @param name
     * @return
     */
    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }

    /**
     * 通过class获取Bean.
     *
     * @param clazz
     * @return
     */
    public static <T> T getBean(Class<T> clazz) {
        return getApplicationContext().getBean(clazz);
    }

    /**
     * 通过name,以及Clazz返回指定的Bean
     *
     * @param name
     * @param clazz
     * @return
     */
    public static <T> T getBean(String name, Class<T> clazz) {
        return getApplicationContext().getBean(name, clazz);
    }
}
